Gas-fire.



H. i. YATES.

(ASE-IRE.v

4 APPLICATION FILED JULY 29, 1914. 1 183 617. Patented Ma 16, 1916. aSHEETS-SHEET 1.'

f L r g &

Arm/n15)? H. 1. YATES.

GAS FIRE.

APPLICATION FILED JULY 29. I914.

. Patented May 16, 1916.

'3 SHEETS-SHEET mmmmmmmvw Fig.5

5 1m ma mm VG J N n e H ATTO/PA/Eyj WITNESSES: v

, form HARRY JAMEdYATES, F AS IPOIN', BIRMINGHAM, GLAND;

' GAS-Elm.

To all whom it may concern:

Be it known that I, HARRY J AMES Yarns, subject of the King of GreatBritain; residing at Essex Works, Thimble Mill Lane,

Aston, in the city of Birmingham, England 7 managing director ofcompany, have invented certain new and. useful Improve nicnts Relatingto Gas-Fires; of which the following is a specification.

This invention relates to gas fires of the tvie coin risin a number ofradiants 0rheating elements placed in conjunction with a fire-brick backand the nozzles of a gas burner. v

In Well designed gas fires no difficulty is ixperienced in withdrawingall the products of. combustion from the fire to the chimney andeffectively preventingescape of any such products into the room. Thesize of the orifice required for proper conveyance of the combustionproducts to the chimney is, however, limited, and in consequence while aWell designed gas fire does not contaminate the air of a room it maysometimes impair the ventilation of a room wher such ventilation is madeto depend chiefly uponthe air which will pass through the outlet orificeof the gas fire. y

The object of this invention is to enable such gas'fires to be employednot only for heating purposes without contaminating the atmosphere of aroom, bu't'also to produce a more ample ventilation than has beenpossible with gas fires hitherto. V

The invention comprises the provision in a gas fire as above described,of a pair of outlet apertures from the fire to the chimney, one arrangedin a suitable position and of suitable dimensions for the passage of ithe combustion products and the other so dimensioned and positioned asto allow of a flow of air caused by the heated products of combustion.

In the two accompanyingsheets of explanatory drawings:--Figures 1, 2,and 4; are vertical sections of four dillerent gas fires constructed inaccordance With this invention. Fig, 5 is a front elevation broken awayto show the burner of the of each of the fires shown in Figs; 2, 3 and 4is substantially the same as that shown in Fig. 5. v

In the construction of a gas fire as shown in Fig. l, the fire-brickback a along the lower part of the face of which the usual Specificationof Letters Patent.

ing greater ventilation of showh in Figs 1. The front elevation PatentedMay 16 1916.

Application filed July 29, 191%. Serial No. 853.977.

vertical heating elements Z; are arranged (with horizontal elements 0when such are; constructed, elther from, one piece. or a number ofsuitablyshaped sep-' employed), is

arate pieces, to provide a comparatively narrow opening 0? extendingacross the front of the grate immediately-above the top ofthe heatingelements. This opening forms thepassage for the combustion prodnets, andis inclined upward and communicates with the chimneys. Under the usualcanopy f of'the gas fire another and usually larger opening g isprovided. This ope ing constitutes the passage for air and alsocommunicates with the chimney e. The two passages may be so shaped andarranged as to form a pair of complementary nozzles enabling the rapidflow of a comparatively small quantity of combustion products throughthe one to induce a slower but larger flow of air through the other.

vVl1il e the passage Z is properly proportioned to deal with thecombustion products and is placed relatively to the radiants andfirebricl; hack in the best position for Withdrawing the productsto thechimney and preventing escape into the room,'the passage g is situatedradiants to avoid upon the fire by passage.

58y the provision of two passages for the combustion products and air asabove de scribed it is found that without loss of efficiency a fire canbe utilized for promota room than when provided with a single passagedesigned mainly for insuring" proper any serious cooling effect the airflowing into that the combustion products.

The invention is not limited in such gas fires to any particularposition or construction of the. passages for air and combustionproducts, as these details may be varied to meet different requiremainlyby the passage h which Withdrawal of number shape, diseither the main Isulliciently far from the v is distinguished is similar to Fig. 2excepting in the shape and disposition of the passa 'es (l, y and It.The construction shown in l ig. 4 is characterized by the disposition ofthe passage (Z. This is situated rather higher above the radiants thanin the other constructions described, and may receive part of the venti'lating air in addition to the products of combustion. The remainder ofthe air is drawn beneath the canopy into the passage wi. it issufiiciently removed from the radiants to avoid any detrimental coolingeffect upon the radiants.

The heating elements 6 consist of skeleton or perforated tubes ofrefractory material each of which is situated over a nozzle of theburner 72,. A flame from a nozzle passes into the interior of each tubeand raises the latter to a state of incandescence. The burnt gasesescaping through the open sides of the tubes pass along the front facesof the fire-brickback and enter the outlet passage d. The pieces care ofsimilar material to the pieces I) and are also made in an open orskeleton tubular form. These are heated by the hot gases passing away atthe tops of the elements I). The heating elements b and the pieces 0form no part of the invention, being old and well. known.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. In gas fires provided with heatingelements and in which the ventilation of the room containing the fire ischiefly dependent upon the air which will pass through the -'outlet fromthe gas fire to the chimney, the

combination with a gas fire, of a pair of outlet passagcs connnunicatingwith and pen mancntly open to the chinmey, one arranged adjacent to theheating elements of the gas the for the conduction of combustionproducts to the chimney, and the other above and at a distance from thesaid heating elements for the conduction to the chimney of a flow of airproduced by the combustion products, the two passages opening adjacentto each other on the chimney side, substantially as described.

'2. In gas fires provided with heating elements and in which theventilation of the room containing the fire is chiefly dependent uponthe air which will pass through the outlet from the gas fire to thechimney, the combination with a gas fire, of a pair of outlet passagescommunicating with and permanently open to the chimney, one arrangedadjacent to the heating elements for the passage of combustion productsand the other above and at a distance from the heating elements for theflow of air produced by the combustion products, and an additionalpassage between the said passages for air and combustion products, allthe passages openside, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HARRY JAMES YATES.

\Vitnesses:

J OIIN MORGAN,

FRANCIS MALrAs.

mg adjacent to each other on the chimney

